Title :
Multiservices and multiband optical signal generation for hybrid access networks
Author :
Almeida, Paulo ; Silva, Henrique
Author_Institution :
Dept. de Eng. Electrotec. e de Comput., Univ. de Coimbra, Coimbra, Portugal
Abstract :
A novel optical transmitter, capable of delivering simultaneously a fiber-to-the-home (FTTH) service to an optical network unit (ONU) and two different wireless services in three separated bands to a base station (BS), is proposed and demonstrated by simulation. Multiservice modulation of an optical carrier is demonstrated for fiber-optic transmission of a 400 Mbit/s 16-quadrature amplitude modulation (QAM) orthogonal frequency division multiplexing (OFDM) signal, a 800 Mbit/s 16-QAM OFDM signal and a 1.6 Gbit/s non-return-to-zero (NRZ) FTTH baseband signal on a single wavelength, using a commercial z-cut dual parallel Mach-Zehnder modulator (DPMZM). At the BS, by heterodyning in a high-speed photodiode, the two different wireless services are delivered in the two separate bands of ultra-wideband (UWB), 3.1 to 10.6 GHz and 57 to 64 GHz, and simultaneously at the 41 to 48 GHz band.
Keywords :
OFDM modulation; optical fibre subscriber loops; optical transmitters; quadrature amplitude modulation; ultra wideband communication; DPMZM; FTTH service; NRZ FTTH baseband signal; OFDM signal; ONU; QAM; UWB; bit rate 1.6 Gbit/s; bit rate 400 Mbit/s; bit rate 800 Mbit/s; dual parallel Mach-Zehnder modulator; fiber-optic transmission; fiber-to-the-home service; frequency 3.1 GHz to 10.6 GHz; frequency 41 GHz to 48 GHz; frequency 57 GHz to 64 GHz; high-speed photodiode; hybrid access network; multiband optical signal generation; multiservice modulation; multiservices optical signal generation; optical carrier; optical network unit; optical transmitter; orthogonal frequency division multiplexing; quadrature amplitude modulation; wireless service; Baseband; High speed optical techniques; OFDM; Optical fibers; Optical filters; Optical transmitters; Radio frequency; Optical wireless access network; Radio-over-fiber (RoF); fiber-to-the-home (FTTH);
Conference_Titel :
Optical Network Design and Modeling (ONDM), 2011 15th International Conference on
Conference_Location :
Bologna
Print_ISBN :
978-1-4244-9596-2
Electronic_ISBN :
978-3-901882-42-5
